Boston FR

Contract spring mattress. Non-combustible matters, comfortable, solid and durable

Boston FR is a spring mattress for contract furniture that uses the Bonnell steel spring system, in this case 360 elements in the queen size version and 168 for the twin model. This comfortable mattress is rendered non-combustible by layers of insulation. Boston FR is solid and durable. Its compact form is guaranteed by the external frame of the spring mattress and the individual and firmly connected pocket springs.

rated class 1 IM
n. TV1154D20D1IM00012
ergonomic support
Pocket spring mattress
Biconical Bonnell system coil springs in 2.2 mm diameter carbon phosphate steel wire. Spring diameters range from 85 mm to 40 mm, depending on where they are positioned. They are connected by 1.3 mm diameter steel coils. The tensile strength is equal to 190 kg/m2. The 80×190 cm twin model features 168 springs; the 160×190 cm queen size model features 360 springs.
Reinforcement
The perimeter reinforcing elements of the pocket spring mattress are mounted on non-combustible and non-deforming expanded polyurethane, known as T 30/RC 5E. The sides are 50 mm thick, 147 mm high, with a density of 30 kg/m3.
INSULATION
Non-combustible insulating and stabilising panel, known as Pad Flame Retardant – Barrier 350, 6 mm thick and with a weight of 1,300 g/m2; composition 35% wool, 35% non-combustible acrylic and 30% polypropylene.
Stabiliser
In high resilience and non-combustible expanded polyurethane known as T 30/RC 5E, 15 mm thick and with a density of 30 kg/m3.
Upholstery
Non-combustible thermo-bonded padding, known as Poly Slick HR-FR, 30 mm thick and weight of 500 g/m2. It is composed of 100% polyester padding, with a quilted lozenge pattern, external non-combustible fabric cover and additional non-combustible layer, known as Tekna Barriera FR with a density of 140 g/m2; composition 90% viscose and 10% polyester.
Skirting Board
Realised in non-combustible fabric, known as Fuego 011-00; composition 61% modacrylic fibre and 39% polyester fibre, with a weight of 160 g/m2. It is quilted with a layer of padding known as Poly Slick HR-FR, 8 mm thick and with a weight of 200 g/m2, composed of 100% polyester padding, and a non-combustible layer known as Tekna Barriera FR with a density of 140 g/m2.
FABRIC
Finished in non-combustible fabric, known as Fuego 011-00; composition 61% modacrylic fibre and 39% polyester fibre, with a weight of 160 g/m2. The lozenge quilting and fixing of all components are realised in extra-strong upholstery thread.
H 21 cm (approx.)
standard dimensions

twin

80 x 190 cm
80 x 195 cm
80 x 200 cm
85 x 190 cm
85 x 195 cm
85 x 200 cm
90 x 190 cm
90 x 195 cm
90 x 200 cm

full size

100 x 190 cm
100 x 195 cm
100 x 200 cm
120 x 190 cm
120 x 195 cm
120 x 200 cm
140 x 190 cm
140 x 195 cm
140 x 200 cm

queen size

160 x 190 cm
160 x 195 cm
160 x 200 cm
165 x 190 cm
165 x 195 cm
165 x 200 cm
170 x 190 cm
170 x 195 cm
170 x 200 cm

queen size XL

180 x 190 cm
180 x 195 cm
180 x 200 cm

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